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Boiler Test – Questions With Correct Solutions
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Boiler Test – Questions With Correct Solutions
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Boiler Test – Questions With Correct SolutionsThe basic function of an automatic feedwater regulator on a boiler is to:
✔️Ans - maintain proper water level
If one square inch column of water is one foot tall, how much does it weight?
✔️Ans - .433 lbs
Where is the flame sensing device located on a boiler? ✔️Ans - front
Cracking of the boiler can be caused by: ✔️Ans - caustic embrittlement
How would you test the operation of the flame failure device? ✔️Ans - by
shutting off the fuel supply
Where are the combustible gases located in a water tube boiler? ✔️Ans -
flowing around the tubes
What are you preventing by increasing the pressure within a cold boiler
gradually? ✔️Ans - thermal shock
When performing a hydrostatic test, the pressure on the boiler should not
exceed: ✔️Ans - 6% above 1.5 times the MAWP
A boiler operator log must be maintained in a boiler room containing over:
✔️Ans - 100 horsepower
If a flame sensing device noticed that there is a flame failure, what device does
it secure? ✔️Ans - fuel solenoid valve
How is the air to gas ratio maintained within a boiler? ✔️Ans - all of the
above: modulating motor and linkage, air damper, butterfly valve
What type of draft had a fan between the boiler and the chimney ✔️Ans -
induced
What is used to control alkalininty? ✔️Ans - caustic soda
, what is the best way to decide the blowdown frequency of a boiler? ✔️Ans -
boiler water analysis
what device is used to obtain sufficient static head for the returning
condensate in a two-pipe gravity return system? ✔️Ans - return trap
what is the maximum temperature a hot water boiler can be to qualify in NJ as
low pressure? ✔️Ans - 250 F
what type of boiler is a HRT ✔️Ans - fire-tube
what is the purge cycle in a boiler meant to do ✔️Ans - remove
combustible gases
which valve is allowed between the boiler and safety valve ✔️Ans - no
valve
which is a common type of feedwater regulator in a low pressure plant
✔️Ans - pressure sensitive device
when open, an OS&Y valve offers.......to the flow of steam ✔️Ans - no
resistance
what section of the ASME code do hot water heating boilers fall under
✔️Ans - section IV
which describes the combustion chamber of a serpentine tube heating boiler?
✔️Ans - located below the tubes
what should you do if you walked into a boiler room and the safety valves
where popped ✔️Ans - secure the fire at the burner
what letter stamp denotes a low pressure boiler ✔️Ans - H
in NJ how often should boilers over 100 hp be inspected internally and
externally ✔️Ans - annually
a manometer is calibrated in what units of measurement ✔️Ans - inches of
water
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